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From "Cassandra Targett (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SOLR-4320) NPE on spellcheck.count=0 for DirectSolrSpellChecker
Date Tue, 09 Jan 2018 21:50:00 GMT

     [ https://issues.apache.org/jira/browse/SOLR-4320?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Cassandra Targett resolved SOLR-4320.
-------------------------------------
    Resolution: Cannot Reproduce

I followed the steps outlined here, and don't get an NPE or any other type of error:

{{http://localhost:8983/solr/test/spell?q=catl&spellcheck.count=0}}

{code}
{
  "responseHeader":{
    "zkConnected":true,
    "status":0,
    "QTime":5},
  "response":{"numFound":0,"start":0,"maxScore":0.0,"docs":[]
  },
  "spellcheck":{
    "suggestions":[],
    "correctlySpelled":false,
    "collations":[]}}
{code}

Resolving as Cannot Reproduce.

> NPE on spellcheck.count=0 for DirectSolrSpellChecker
> ----------------------------------------------------
>
>                 Key: SOLR-4320
>                 URL: https://issues.apache.org/jira/browse/SOLR-4320
>             Project: Solr
>          Issue Type: Bug
>          Components: spellchecker
>    Affects Versions: 4.0
>            Reporter: Jack Krupansky
>            Priority: Minor
>
> An NPE occurs if the spellcheck.count=0 parameter is specified when the spellcheck component
is enabled with a DirectSolrSpellChecker spellchecker and a query term that has non-zero suggestions.
> Repro:
> 1. Start with Solr 4.0 example.
> 2. Add these sample documents:
> {code}
> curl http://localhost:8983/solr/update?commit=true -H 'Content-type:application/csv'
-d '
> id,name
> spel-1,aardvark abacus ball bill cat cello
> spel-2,abate accord band bell cattle check
> spel-3,adorn border clean clock'
> {code}
> 3. Perform this spellcheck request:
> {code}
> curl "http://localhost:8983/solr/spell/?q=catl&spellcheck.count=0&indent=true"
> {code}
> 4. See the NPE at org.apache.lucene.search.spell.DirectSpellChecker.suggestSimilar line
409.
> Response:
> {code}
> <?xml version="1.0" encoding="UTF-8"?>
> <response>
> <lst name="responseHeader">
>   <int name="status">500</int>
>   <int name="QTime">45</int>
> </lst>
> <result name="response" numFound="0" start="0">
> </result>
> <lst name="error">
>   <str name="trace">java.lang.NullPointerException
>         at org.apache.lucene.search.spell.DirectSpellChecker.suggestSimilar(DirectSpellChecker.java:409)
>         at org.apache.lucene.search.spell.DirectSpellChecker.suggestSimilar(DirectSpellChecker.java:355)
>         at org.apache.solr.spelling.DirectSolrSpellChecker.getSuggestions(DirectSolrSpellChecker.java:189)
>         at org.apache.solr.spelling.ConjunctionSolrSpellChecker.getSuggestions(ConjunctionSolrSpellChecker.java:120)
>         at org.apache.solr.handler.component.SpellCheckComponent.process(SpellCheckComponent.java:172)
>         at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:206)
>         at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:129)
>         at org.apache.solr.core.RequestHandlers$LazyRequestHandlerWrapper.handleRequest(RequestHandlers.java:240)
>         at org.apache.solr.core.SolrCore.execute(SolrCore.java:1699)
>         at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:455)
>         at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:276)
>         at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1337)
>         at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:484)
>         at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
>         at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:524)
>         at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:233)
>         at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1065)
>         at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:413)
>         at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:192)
>         at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:999)
>         at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
>         at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
>         at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
>         at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)
>         at org.eclipse.jetty.server.Server.handle(Server.java:351)
>         at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:454)
>         at org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:47)
>         at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:890)
>         at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:944)
>         at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:634)
>         at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:230)
>         at org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:66)
>         at org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:254)
>         at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:599)
>         at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:534)
>         at java.lang.Thread.run(Unknown Source)
> </str>
>   <int name="code">500</int>
> </lst>
> </response>
> {code}



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